Demand is so high with my LO that she sucks me dry during the day, so at about 2 she is fussy/upset because she goes from one breast to the other sucking (but theyre dry), which is what leads me to give her the formula. I feel like ive tortured her but basically shes "pumped me dry", but ive got to wait a few hours to have more for her. This is when i just feel horrible cause i obviously dont have enough for her. Maybe part of this is the growth spurt she is having as we get to week 6? Nonetheless, I've got enough at night, but not during the day when she is craving more.